Car Form: A super speed boost is given.
Robot Form: No noticeable speed boost given.
Car Form: Knocks players back upon contact (Similar to Mr. Touchdown)Robot Form: Fires a barrage of missiles forward, killing enemies a long range in front of you. The missiles also have a splash damage attack, attacking any players nearby the explosion
Robo Car does very good, due to his dual attacks. In addition, it is easy to go from last to first: Knock aside the 3rd and 2nd placers, then kill the 1st player.
The idea for Robo Car may have come from Transformers, a movie/TV seires where robots can transform into various objects. It is also one of the two robotic pets in the game, the other one being Robo Spacecraft.
Robo Car for Transformers would most likely look like Bumblebee's vehicle form.